We look at the division of 135193 by 17 
The aim is to understand the frequency of 17 in 135193.

Advancing to step 1:
17 goes into 1 0 times with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Bring next digit (3) of the dividend behind the 1 and repeat the process: 13 / 17

Advancing to step 2:
If we divide 13 by 17, we get 0 and a remainder of 13.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 13 leaves us with 13.
Grab the next digit (5) from the dividend, add it to 13, then carry on: 135 / 17

On to step 3:
135 divided by 17 is 7 with a remainder of 16.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
The remainder is 16 after subtracting 119 from 135.
Append the next digit (1) from the dividend to 16 and continue with: 161 / 17

On to step 4:
The number 17 fits into 161 9 times, leaving a remainder of 8.
Write down 9 as next digit of the result. 
Result so far: 79.0
Deduct 153 from 161 and we're left with 8.
Bring next digit (9) of the dividend behind the 8 and repeat the process: 89 / 17

Going ahead to step 5:
The number 17 fits into 89 5 times, leaving a remainder of 4.
Record the quotient 5 as the next digit in the result. 
Result so far: 795.0
The remainder is 4 after subtracting 85 from 89.
Take the next digit (3) from the dividend and append it to 4, then repeat: 43 / 17

Step 6:
When dividing 43 by 17, we get 2 with a remainder of 9.
Write down 2 as next digit of the result. 
Result so far: 7952.0
Deduct 34 from 43 and we're left with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Going ahead to step 7:
17 goes into 90 5 times with a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 7952.5
Subtracting 85 from 90 leaves us with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 8:
If we divide 50 by 17, we get 2 and a remainder of 16.
Write down 2 as next digit of the result. 
Result so far: 7952.52
Deduct 34 from 50 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 9:
17 goes into 160 9 times with a remainder of 7.
Put 9 as the next digit of the answer. 
Result so far: 7952.529
If we take 153 away from 160, we end up with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

On to step 10:
If we divide 70 by 17, we get 4 and a remainder of 2.
Put 4 as the next digit of the answer. 
Result so far: 7952.5294
If we take 68 away from 70, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 11:
17 goes into 20 1 times with a remainder of 3.
Write down 1 as next digit of the result. 
Result so far: 7952.52941
Subtracting 17 from 20 leaves us with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 12:
17 can be fit into 30 1 times, resulting in a remainder of 13.
Record the quotient 1 as the next digit in the result. 
Result so far: 7952.529411
Subtract 17 from 30 to get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

After the division, we end up with 7952.529411 and a remainder of 1.3e-06.